Ethereum’s Gas Token Vulnerable to Smart Contract Attack

A team of investigators has spotted a vulnerability and a way to exploit Gas Token, an asset conceived as a way to tokenize gas. The vulnerability falls within the spectrum of smart contract flaws, and may allow for the creation of unlimited amounts of Gas Token. The danger will mostly affect exchanges, and not separate users.

The Level K group of researchers noticed the vulnerability could be exploited in the event of withdrawing ETH from exchanges.

“Many exchanges allow the withdrawal of Ethereum to arbitrary addresses with no gas usage limit. Since sending Ethereum to a contract address executes its fallback function, attackers can make these exchanges pay for arbitrary computation. This…

This article appeared first on Cryptovest

Disclaimer: Fusion Media would like to remind you that the data contained in this website is not necessarily real-time nor accurate. All CFDs (stocks, indexes, futures) and Forex prices are not provided by exchanges but rather by market makers, and so prices may not be accurate and may differ from the actual market price, meaning prices are indicative and not appropriate for trading purposes. Therefore Fusion Media doesn`t bear any responsibility for any trading losses you might incur as a result of using this data.

Fusion Media or anyone involved with Fusion Media will not accept any liability for loss or damage as a result of reliance on the information including data, quotes, charts and buy/sell signals contained within this website. Please be fully informed regarding the risks and costs associated with trading the financial markets, it is one of the riskiest investment forms possible.